文章基本信息

标题：Treatment of Primary Settled Wastewater Using Anaerobic Sequencing Batch Reactor Seeded with Activated EM
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作者：Safwat Ahmed ; Hisham Abdelhalim ; Ehab Rozaik 等
期刊名称：Civil and Environmental Research
印刷版ISSN：2225-0514
电子版ISSN：2225-0514
出版年度：2013
卷号：3
期号：11
页码：130-136
语种：English
出版社：The International Institute for Science, Technology and Education (IISTE)
摘要：The biologic treatment process using effective microorganisms (EM) in an anaerobic sequencing batch reactor (ASBR) for primary settled wastewater treatment was investigated. Activated EM was formed from raw EM to increase its efficiency by ensuring that the microorganisms were in an exponential phase of growth. A bench-scale ASBR (volume 2.6 l) was seeded with activated EM and the characteristics of the influent and effluent wastewater were investigated under different temperatures and reaction times. This system achieved good removal efficiency for all the analyzed parameters. The removal efficiency of the chemical oxygen demand (COD), soluble COD, biochemical oxygen demand, total suspended solids, ammonia, and total phosphorus increased with increasing reaction time and temperature, and reached 72.1%, 61.5%, 75.7%, 80.9%, 50.4%, and 62.5% respectively, at a reaction time of 24 h and at 35 °C. The system showed good removal of total coliform and salmonella and a reduction in ammonia and sulfate-reducing bacteria. Biogas can also be obtained using this system.
关键词：Anaerobic treatment; ASBR; Effective microorganisms; Pathogens; Wastewater treatment